LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1996 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window System >> Testing >> Left Front Window Does Not Operate
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Left Front Window Does Not Operate

  1. Disconnect left front window motor connector. Turn ignition on. Move left front window switch to UP position. Connect test light between left front window motor Dark Blue wire and ground. If test light illuminates, go to next step. If test light does not illuminate, repair open in Dark Blue wire. If wire is okay, replace left front window switch.
  2. Connect test light between left front window motor Dark Blue and Brown wires. If test light illuminates, replace left front window motor. If test light does not illuminate, repair open in Brown wire. If wire is okay, replace left front window switch.
scientia non olet · About LEMON Manuals